Las primeras unidades de la SAV MkI fabricadas en España
Una placa diseñada y fabricada en España.
Estas son las imágenes de la SAV MkI que me han mandado de la fábrica. Esta semana probarán las 10 que han producido a modo de prueba piloto. Si todo va bien las tendré en mi poder durante la semana que viene.
Una vez hechas las pruebas, lanzare la campaña de crowdfunding de esta placa diseñada en, por y para la comunidad clone wars.
La placa va a salir un poco más cara de lo que pensaba, pero no he sacrificado ni un pelo en la calidad de los componentes que monta, ni en la calidad del proceso de producción (como podéis ver en las fotos adjuntas). Una placa diseñada y fabricada en España. Os puedo asegurar que no monta garrafón.
Soporta los proyectos Españoles y su industria pasando la palabra entre tus contactos, que se conozca la SAV MkI. Queremos que nos conozcan por nuestro saber hacer!
No way I’d buy this board unless it did something different than others. Anything. More extruders, cheaper price, very high resolution ADC, axis connectors paired together (endstop/motor/thermistor paired closely on the board for easy wire management), high current expansion pins, etc.
I was getting ready to bash this board as well for being so un-special, but it does look like someone who at least somewhat knows his stuff designed this. If priced right, it could well replace the sanguinololu or printrboard as an entry-level board. I personally don’t care at all about where it is made, though - if the Chinese manage to achieve the same quality for less, then I’d buy from them in a heartbeat. @jakolete_jakolete any info on pricing?
I’d been considering designing an AT90USB1286 based board after seeing how fast my Teensy++2 can accept gcode. But TBH the Teensylu is a better layout than this, especially the 2 planes on the underside to deliver power to the high current parts, this looks far more clumsy. I’m now considering changing the Teensylu a bit to meet my needs.
msd slot (no big thing on this, but compared with ramps, its an improvement)
-bluetooth module interface
-quality fets, that use the pcb as dissipator
-low noice design (low noice as in electrical noice)
@F_Malpartida_fm wants to keep the price low, like close to the sanguinololu.
im sure that after the first batch goes out, an extruder expansion board can be developed.
Thanks folks for commenting. The board is an evolution of the teensylu with a few twists to it. On the electrical side: there’s a bit more filtering (USB and 5V rails), thermally the FETs are coupled to the PCB (the ones on-board handle nicely 15A with a 15C inc over room pemperature). Levels adjusted to 3.3V for devices (BT, uSD), switching FET for fan control and freewheeling diodes for switching a relay (for those who prefer them) or suppress LC spikes when using long leads on switching elements.
The back of the board I have to agree is not as neat as I would have liked, however all tracks are well dimensioned for their current loads, including the expansion area.
As +Thomas Sanladerer mentions, it’s an entry level board targeted to deliver what is needed for less. The goal is to have a price tag lower than the sanguinololu while delivering something useful. Its not meant to be novel; simply deliver something that works well with a good price tag. Being fabricated in the EU I can ensure that the components on board are those on spec. Marlin already supports already this HW variant.
The price tag is going to be around 55€ but may go down depending on volume of the first order. Compared with the sanguino is not bad.
At 8MBps native USB interface, prints are very smooth and gcode transfers are very fast. FETs switching 15A loads with no additional heat sinks is nice too.
There are several things coming for it too:
a backpack to support a fifth driver and LCD with rotary encoder.
android app over BT and USB (at last a decent user interface).
The board is already fully operational and tested as a proto-run and works a treat. It is already fully qualified.
The pilot run is going to be here this week. Depending on the board tests (expect to have better performance than the proto-run, a bit more filtering) I will be launching the crowd funding campaign late next week which will go on for a month.
I expect that mid/late January they will all be shipped.
